<!DOCTYPE html>
<html> 
  <head>
    <title>TEST</title>
    <script type="text/javascript" src="jquery.js"></script>
    <script type="text/javascript">
    $(function() {
        window.setTimeout(function() {
            $('#ajax_content').load('ajax_content.html');
        }, 1000)
    })
    </script>
  </head> 
  <body>
    <h1>Test Page: AJAX-loaded readiness</h1>
    
    <div id="ajax_content"></div>
    
  </body>
</html>